Sole-edge trimming and finishing tool.



A. DHFRASGOLA.

SOLE EDGE TRIMMING AND FINISHING TOOL.

APPLICATION FILED JUNE 14, 1913.

Patented Apr 28, 1914.

A NTONIO D. Fzescom wumoow awe one,

ANTONIO D. FRASGOLA, OF EL RENO, OKLAHOMA.

SOLE-EDGE TRIMMING AND FINISHING TOOL.

To all whom it may concern Be it known that I, ANTONIO D. FRASCOLA, a citizen of the United States, residing at El Reno, in the county of Canadian and State of Oklahoma, have invented certain new and useful Improvements in Sole-Edge Trimming and Finishing Tools, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to an improved sole edge trimming and finishing tool for shoes and of that character wherein a revolving cutter and burnishing member is employed, the primary object of the invention residing in the provision of improved means for mounting and locking the cutter and burnishing member in their relative positions upon the operating shaft.

The invention has for another and more specific object the provision of a cutter, a burnishing member or sleeve provided with a plurality of fingers adapted to engage in the spaces between the cutting knives, a shaft provided with a. threaded portion and a longitudinal slot therein, a key formed upon the burnishing sleeve to travel in said slot, and a collar threaded upon said sleeve and provided with a longitudinal series of teeth for locking engagement with the threads upon the shaft, the teeth on said collar being adapted to register with the groove in the shaft whereby said collar and sleeve may be adjusted longitudinally of the shaft.

The invention has for still another object the provision of means for removably mounting the rand guide upon the end of the operating shaft whereby the same is retained in position thereon through the operation of the tool without necessitating the use of screws or analagous fastening means.

With the above and other objects in view, this invention consists in the novel features of construct-ion and the combination and arrangement of parts to be hereinafter more fully described, pointed out in the appended claims, and shown. in the accompanying drawing, in which Figure 1 is a side elevation of a tool embodying the present invention; Fig. 2 is a longitudinal section thereof; Fig. 3 is an end view; Fig. 1 is a section taken on the line 1 i of Fig. 2; Fig. 5 is a detail fragmentary longitudinal section, showing the collar in its adjusted position for the longitudinal movement of the burnishing sleeve Specification of Letters Patent.

Application filed June 14, 1913.

Patented Apr. 28, 1914.

Serial No. 773,720.

upon the shaft; and Fig. 6 is a detail fragmentary elevation of the shaft, Fig. 7 is a detail elevation of the rand guide.

Referring in detail to the drawing, 5 designates the shaft upon which the parts of my improved tool are mounted. This shaft is, of course, j ournaled in suitable sup ports or bearings and revolved by the usual means, said shaft constituting a portion of a trimming and burnishing machine. This shaft is provided with a threaded portion 6 and in this threaded portion a longitudinal slot 7 is formed, At one side of the slot 7 the haft is provided with a longitudinally extending plane or unthreaded surface 8 for a purpose which will be obvious from the following description. The extremity of the shaft beyond the threaded portion thereof is reduced in diameter as shown at 9, and this reduced portion of the shaft is provided at diametrically opposite points with bayonet slots -10 which open at one of their ends upon the end face of the shaft.

The trimmer or cutter 11 is of the usual construction, the same consisting of the hub portion 12 provided with a plurality of cutting teeth 13. This cutter is mounted upon a bushing 1a one end of which is flanged, as at 15, said flanged end of the bushing being opposed to the shoulder on the operating shaft which is formed by reducing the end of said shaft. This cutter is held against longitudinal movement by means of the rand guide 16.

In tools of this character now in general use, the rand guide is held upon the end of the shaft by means of a bolt or screw. This screw frequently works loose in the operation of the tool so that the rand guide is released and it is necessary to stop the operation of the machine to again secure the same on the shaft. In the present invention I eliminate all liability of the release of the guide by providing the same with lugs 17 arranged at diametrically opposite points and extending inwardly into the shaft receiving opening of the guide. These lugs are adapted to be received in the bayonet slots provided in the end of the shaft and during the operation of the tool, said lugs 17 are moved toward the inner ends of said slots. The rand guide may, however, be quickly and readily removed when necessary by simply turning the same to dispose the lugs 17 in line with the longitudinal portions of the bayonet slots. To the inner face of the rand guide a toothed disk, indicated at 18, is secured, the teeth of said disk cooperating with the teeth of the cutter 11 to properly trim the edge of the shoe sole.

The burnishing sleeve 19 is mounted upon the shaft 5 for longitudinal adjustment with respect to the cutter 11 and is provided with the usual burnishing fingers or teeth 20 which enter the spaces between the teeth of the cutter. This sleeve is provided with a reduced exteriorly threaded portion 21 upon which the locking collar 22 is engaged, said collar being reduced in thickness and interiorly threaded at one of its ends. The remaining portion of the bore of the collar is provided with a longitudinal series of interrupted threads 23 of the same pitch as threads on the shaft 5 which are of slightly less width than the width of the channel 7 in the shaft 5 so that they will freely move longitudinally therein when the collar is properly adjusted. The bore of the burnishing sleeve 19 is provided with a suitable key 24 which is also adapted for movement in the longitudinal channel of the operating shaft. It is to be especially noted that the longitudinally extending plane or unthreaded surface 8 of the operating shaft projects beyond the base of the screw threads on said shaft.

In the adjustment of the burnishing sleeve, the locking collar 22 is rotated upon the threaded portion of the sleeve until the threads 23 are disposed in the channel 7 of the shaft. The sleeve and the collar are teen moved together longitudinally until the teeth or buffer fingers of the sleeve 17 are disposed in the desired position with relation to the teeth of the cutter. The collar 22 is then rotated upon the burnishing sleeve to engage the teeth 28 projecting into the bore of the collar with the threads upon the shaft, said collar being turned away from the longitudinal unthreaded surface 8 of the shaft in a direction opposite to the turning movement of the shaft during the operation of the tool. The teeth 23 on the collar engage the projecting plane portion 8 on the shaft to prevent further turning movement of the collar. Thus the collar and sleeve are securely locked against longitudinal movement after the same have been adjusted. In order to readjust the burnishing sleeve, it is necessary to reverse the rotation of the collar so that the teeth 23 thereon can be again brought into registering relation with the channel 7 in the operating shaft.

The hub of the cutter 11 is preferably provided with a key way 25 to receive a suitable key upon a mandrel whereby the cutter may be readily mounted for rotation when it is desired to sharpen the cutting or trimming teeth. It will be understood from the above description that the revoluble motion of the tool shaft is all that is necessary to retain the locking and adjusting collar as well as the rand guide in their proper positions upon said shaft.

From the foregoing, the construction, manner of assembling the several parts and the operation of my improved tool will be clearly and fully understood.

The device is extremely simple, and ad mits of the easy and quick adjustment of the burnishing sleeve with respect to the cutter in accordance with the thickness of the shoe sole to be operated upon.

The device can also be produced in practical form and at substantially the same manufacturing cost as incurred in the manufacture of tools of this character now in general use.

lVhile I have above described and shown the preferred construction and arrangement of the elements employed, it will be understood that my invention is susceptible of considerable modification therein without departing from the essential features or sacrificing any of the advantages of the same.

hat I claim is:

1. In a tool of the character described, the combination of an operating shaft provided with a longitudinal channel, a rand guide and sole trimmer mounted upon said shaft, said sole trimmer having a series of radially projecting spaced cutting teeth, an edge burnishing sleeve mounted upon the shaft and having a key slidable in the channel thereof, said sleeve having buffer teeth arranged in the spaces between the teeth of the trimmer, and a locking and adjusting collar threaded upon said sleeve, said shaft being provided with a relatively narrow unthreaded portion along one side of said channel and threads opening into said channel at the opposite side thereof and extending around the shaft to and being interrupted by said unthreaded portion, said unthreaded portion projecting beyond the base of said threads, said locking collar being provided with a longitudinal series of interrupted threads adapted by rotation of said collar to be disposed in said channel or in locking engagement with the threads upon said shaft.

2. In a tool of the character described, the combination of a shaft provided with a longitudinal channel, one end of said shaft being reduced, a rand guide and sole trimmer mounted upon said reduced end of the shaft, said sole trimmer having a series of radially projecting spaced cutting teeth, a burnishing sleeve longitudinally movable upon the shaft and provided with a key engaged in the channel thereof, and a lock ing member rotatably mounted upon the sleeve, said shaft being provided with a relatively narrow unthreaded portion along one side of said channel and threads opening into said channel at the opposite side thereof extending around the shaft to and being interrupted by said unthreaded portion, said locking collar being provided with means adapted by rotation of the collar for locking engagement with the threads upon said shaft or to be disposed in said channel whereby the burnishing sleeve may be moved longitudinally upon the shaft.

3. In a tool of the character described, the combination of a shaft provided with a longitudinal channel, a rand guide and sole trimmer mounted upon said shaft, a burnishing sleeve longitudinally movable on the shaft toward and from the rand guide, said sleeve being provided with a key for engagement in the channel in said shaft, and

an element rotatably mounted upon the sleeve, said element and shaft being provided with co-engaging means to lock the sleeve against longitudinal movement and secure the same in its adjusted position with relation to the rand guide, the locking means on said element being adapted by rotation of the element to be disposed in saidehannel whereby the burnishing sleeve may be moved longitudinally upon the shaft.

In testimony whereof I hereunto aflix my signature in the presence of two witnesses. ANTONIO D. FRASCOLA. WVitnesses:

WV. M. WALLACE, L. F. HARTZELL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

